Time for an upgrade? Nixon's black flex watch is the kind of watch that works for all guys--it boasts the right balance of cool with a square face and a simple dial. Warranty Information. Case size: 44 1/4 X 40mm. Photo may have been enlarged or enhanced. 2 Year warranty. Black tone plated stainless steel/crystal/diamond. Imported. Three hand Japanese quartz movement. Water resistant to 10 ATM, triple gasket crown, double locking clasp.